CN112461557B - Multifunctional electric transmission test system with variable topological structure and test method - Google Patents
Multifunctional electric transmission test system with variable topological structure and test method Download PDFInfo
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- CN112461557B CN112461557B CN202011253380.1A CN202011253380A CN112461557B CN 112461557 B CN112461557 B CN 112461557B CN 202011253380 A CN202011253380 A CN 202011253380A CN 112461557 B CN112461557 B CN 112461557B
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/06—Steering behaviour; Rolling behaviour
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention discloses a multifunctional electric transmission test system with a variable topological structure and a test method, wherein the multifunctional electric transmission test system comprises: step S1: judging whether a driving motor needs to be simulated or not; step S2: judging whether a hybrid power mode is performed for energy supply, if not, entering a step S3, and if so, entering a step S4; and step S3: judging whether a power supply system needs to be simulated or not; and step S4: judging whether an engine needs to be simulated, if so, entering the step a, and if not, entering the step b; a: judging whether a generator needs to be simulated or not; b: and judging whether the generator needs to be simulated or not. The invention adopts the multifunctional electric transmission test system with the variable topological structure, can test electric transmission schemes of different schemes by simulating the engine, the generator and the driving motor, integrates double input and double output in the test system, and can effectively test the steering performance effect.
Description
Technical Field
The invention belongs to the technical field of electric transmission bench test testing, and particularly relates to a multifunctional electric transmission test system with a variable topological structure and a test method.
Background
Military demand traction, potential advantages of electric drive, and advances in electric technology, electric drive has become a trend in the development of tracked vehicle drive technology. In the technical field of tracked vehicle transmission, an electric transmission technology formed by integrating the advantages of the mechanical and electrical multidisciplinary fields such as power electronics and electric transmission technology, planetary transmission technology and the like can well meet the requirement of the technical development of the tracked vehicle in the future.
The electric transmission system is divided into a series connection type, a series-parallel connection type and a parallel connection type according to the system scheme, and can be divided into a double-side motor scheme, a zero-differential-speed two-motor scheme, a zero-differential-speed three-motor scheme and a double-side motor coupling scheme according to the driving scheme.
Because the traditional transmission form is changed, the test requirements of an electric transmission system cannot be met by the conventional bench test system from a scheme topology, a test function, a power grade and a test method, and the steering of the tracked vehicle needs the active differential speed of a driving wheel. Therefore, an electric transmission test system aiming at multiple schemes, multiple functions, double input and double output is required to be designed aiming at the characteristics of crawler-type electric transmission, and the electric transmission test system has the test function of an electric transmission system and a control system.
Disclosure of Invention
The invention aims to provide a test method of a multifunctional double-input double-output electric transmission test system with a variable topological structure, which is used for solving the problems in the prior art.
The invention discloses a test method of a multifunctional double-input double-output electric transmission test system with a variable topological structure, which comprises the following steps: step S1: judging whether a driving motor needs to be simulated or not, if so, simulating the driving motor by a left power motor and a right power motor, connecting the driving motors into corresponding electromechanical compound transmission devices, and if the motors are loaded left and right, simulating the actual load of the tracked vehicle through a torque meter and mechanical inertia to form a test bench for the driving characteristic of the dual-input dual-output electric transmission device, and if not, entering step S2; step S2: judging whether a hybrid power mode is performed for energy supply, if not, entering a step S3, and if so, entering a step S4; and step S3: judging whether a power supply system needs to be simulated or not, if so, configuring a corresponding battery or composite energy storage device simulation system and a power supply system for simulating electric transmission according to actual requirements, wherein an electromechanical composite transmission system is connected to a left loading motor and a right loading motor through a torquemeter and mechanical inertia to simulate the load of an actual tracked vehicle, so that an electric transmission system test bed based on the simulated power supply system is formed, and the electric transmission system is subjected to test; and step S4: judging whether an engine needs to be simulated, if so, entering the step a, and if not, entering the step b; a: judging whether a generator needs to be simulated or not, if so, taking a left power motor as a simulation motor of the engine, taking a right power motor as a simulation motor of the generator, connecting an electric transmission device to a left loading motor and a right loading motor through a torque meter and mechanical inertia, carrying out actual tracked vehicle load simulation, forming an electric transmission system test bench based on the characteristics of a simulated engine-generator set, carrying out test on an electric transmission system, and finishing; b: judging whether a generator needs to be simulated or not, if so, taking a right power motor as a simulation motor of the generator, connecting an electric transmission device to a left loading motor and a right loading motor through a torque meter and mechanical inertia, simulating the load of the actual tracked vehicle, forming an electric transmission system test bench based on the characteristics of the simulation generator, carrying out test on an electric transmission system, and finishing; if the electric drive system is not needed, the engine-generator set is used as hybrid power energy to be output, the electric drive device is connected to the left loading motor and the right loading motor through the torque meter and the mechanical inertia to simulate the actual load of the tracked vehicle, an electric drive system test bench based on the characteristics of the engine-generator set is formed, test testing is conducted on the electric drive system, and the test is finished.
According to an embodiment of the test method of the multifunctional dual-input dual-output electric transmission test system with the variable topological structure, an electric transmission device, a gear shifting control strategy, an electromechanical compound straight driving control strategy and a steering control strategy are tested.
According to an embodiment of the test method of the multifunctional double-input double-output electric transmission test system with the variable topological structure, in the step 3, if simulation is not needed, the electric transmission system is connected to the left loading motor and the right loading motor through the torque meter and the mechanical inertia to simulate the load of the actual tracked vehicle, so that an electric transmission system test bed based on actual vehicle power supply is formed, and the electric transmission system is tested.
According to an embodiment of the test method of the multifunctional double-input double-output electric transmission test system with the variable topological structure, in the step S5, if a generator does not need to be simulated, a left power motor is used as a simulation motor of an engine, an electric transmission device is connected to a left loading motor and a right loading motor through a torquer and mechanical inertia to simulate the load of an actual tracked vehicle, an electric transmission system test bench based on the characteristics of the simulation engine is formed, and the electric transmission system is tested.
The invention discloses a multifunctional double-input double-output electric transmission test system with a variable topological structure, which comprises: the left and right power motors simulate driving motors and are connected into corresponding electromechanical compound transmission devices, and the left and right loading motors simulate actual tracked vehicle loads through a torque meter and mechanical inertia to form a test bed for the driving characteristics of the dual-input dual-output electric transmission device; the torque meter and the mechanical inertia are connected to the left loading motor and the right loading motor to simulate the actual load of the tracked vehicle, so that an electric transmission system test bed based on a simulated power supply system is formed, and the electric transmission system is tested; the left power motor is used as a simulation motor of an engine, the right power motor is used as a simulation motor of a generator, the electric transmission device is connected to the left loading motor and the right loading motor through a torque meter and mechanical inertia to simulate the actual load of the tracked vehicle, so that an electric transmission system test bed based on the characteristics of a simulation engine-generator set is formed, and the electric transmission system is tested; the right power motor is used as a simulation motor of the generator, the electric transmission device is connected to the left loading motor and the right loading motor through a torque meter and mechanical inertia to simulate the actual load of the tracked vehicle, so that an electric transmission system test bed frame based on the characteristics of the simulation generator is formed, and the electric transmission system is tested; the engine-generator set is used as hybrid power energy to be output, the electric transmission device is connected to the left loading motor and the right loading motor through the torque meter and the mechanical inertia to simulate the actual load of the tracked vehicle, an electric transmission system test bench based on the characteristics of the engine-generator set is formed, and the electric transmission system is tested.
According to an embodiment of the multifunctional dual-input dual-output electric transmission test system with a variable topology structure, the system further comprises: the electric transmission system is connected to the left loading motor and the right loading motor through the torque meter and the mechanical inertia to simulate the actual load of the tracked vehicle, so that an electric transmission system test bench based on actual vehicle power supply is formed, and the electric transmission system is subjected to test testing.
According to an embodiment of the multifunctional dual-input dual-output electric transmission test system with a variable topology structure, the system further comprises: the left power motor is used as a simulation motor of the engine, the electric transmission device is connected to the left loading motor and the right loading motor through the torque meter and the mechanical inertia to simulate the actual load of the tracked vehicle, so that an electric transmission system test bench based on the characteristics of the simulation engine is formed, and the electric transmission system is tested.
According to an embodiment of the multifunctional dual-input dual-output electric transmission test system with a variable topology structure, the system further comprises: the controllers are all in network communication through the CAN bus.
The invention adopts the multifunctional electric transmission test system with the variable topological structure, can test and test electric transmission schemes of different schemes by simulating the engine, the generator and the driving motor, and simultaneously integrates double input and double output in the test system in a breakthrough way to effectively test the steering performance effect.
Drawings
FIG. 1 is a schematic diagram of a multi-functional dual-input dual-output electric drive test system with a variable topology;
FIG. 2 is a flowchart of the operation of the multifunctional dual-input dual-output electric transmission test system of the present invention.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
Fig. 1 is a schematic diagram of a multifunctional dual-input dual-output electric transmission test system with a variable topology structure, and as shown in fig. 1, this embodiment provides a multifunctional dual-input dual-output electric transmission test system with a variable topology structure, which specifically includes a left and right loading motor, a left and right power motor, a torque meter, a gear box, a mechanical inertia, a tested motor, a tested electric transmission system, a driver operating device, a test and control console, and corresponding data acquisition and analysis devices, an auxiliary system, and a power distribution system.
In this embodiment, the left and right power motors can be used for engine and generator simulation in the front power chain, and also for motor simulation for driving in the rear power chain dual-motor scheme. The left and right loading motors are used for simulating ground load, and a steering process is simulated through a control strategy of the console. The various required controllers carry out network communication through a CAN bus, and the rack system has a data recording and analyzing function.
Fig. 2 is a flowchart of the operation of the multifunctional dual-input dual-output electric transmission test system of the present invention, and as shown in fig. 2, the multifunctional dual-input dual-output electric transmission test system of the present invention is configured according to the following steps when in use:
step S1: judging whether a driving motor needs to be simulated, if so, simulating the driving motor by a left power motor and a right power motor, accessing a corresponding electromechanical compound transmission device, and if so, simulating the actual tracked vehicle load by a torque meter and mechanical inertia to form a dual-input dual-output electric transmission device driving characteristic test bench, carrying out test tests on an electric transmission device, a gear shifting control strategy, an electromechanical compound straight driving control strategy, a steering control strategy and the like, and if not, entering the step S2.
Step S2: and judging whether the hybrid power mode is adopted for energy supply, if not, going to step S3, and if so, going to step S4.
And step S3: judging whether a power supply system needs to be simulated or not, if so, configuring a corresponding battery or composite energy storage device simulation system and a power supply system for simulating electric transmission according to actual requirements, wherein an electromechanical composite transmission system is connected to a left loading motor and a right loading motor through a torque meter and mechanical inertia to simulate the actual load of the tracked vehicle, so that an electric transmission system test bed based on the simulated power supply system is formed, and the electric transmission system is subjected to test; if simulation is not needed, namely a power supply and distribution system in the actual tracked vehicle exists, at the moment, the electric transmission system is connected to the left loading motor and the right loading motor through the torque meter and the mechanical inertia to simulate the load of the actual tracked vehicle, so that an electric transmission system test bench based on actual vehicle power supply is formed, and the electric transmission system is tested.
And step S4: and judging whether the engine needs to be simulated or not, if so, entering step S5, and if not, entering step S6.
Step S5: judging whether a generator needs to be simulated, if so, taking a left power motor as a simulation motor of the engine, taking a right power motor as a simulation motor of the generator, connecting an electric transmission device to a left loading motor and a right loading motor through a torquemeter and mechanical inertia, carrying out actual tracked vehicle load simulation, forming an electric transmission system test bench based on the characteristics of a simulated engine-generator set, carrying out test on an electric transmission system, and going to step s7; if the generator does not need to be simulated, the left power motor is used as a simulation motor of the engine, the generator is a real object, the electric transmission device is connected to the left loading motor and the right loading motor through the torque meter and the mechanical inertia to simulate the actual load of the tracked vehicle, an electric transmission system test bench based on the characteristics of the simulated engine is formed, the electric transmission system is subjected to test testing, and step s7 is carried out.
Step S6, judging whether the generator needs to be simulated or not, if so, taking the right power motor as a simulation motor of the generator, connecting the electric transmission device to the left and right loading motors through a torque meter and mechanical inertia, simulating the load of the actual tracked vehicle, forming an electric transmission system test bench based on the characteristics of the simulation generator, and carrying out test on the electric transmission system; if the electric transmission system is not needed, the engine-generator set is used as hybrid power energy to be output, the electric transmission device is connected to the left loading motor and the right loading motor through the torque meter and the mechanical inertia to simulate the actual load of the tracked vehicle, an electric transmission system test bench based on the characteristics of the engine-generator set is formed, and the electric transmission system is tested.
Step S7: and (6) ending.
By integrating the steps, the scheme of the test bed can be selected according to the content to be tested and the condition of the tested piece to be tested at present, and corresponding tests can be carried out.
The invention adopts a multifunctional double-input double-output electric transmission test system with a variable topological structure, which comprises: the system comprises a left loading motor, a right loading motor, a left power motor, a right power motor, a tested electromechanical composite transmission system, a driver operating device and a test and control console. The corresponding configuration can be carried out according to different electric transmission schemes. As shown in fig. 2, corresponding configuration is performed according to different schemes, in terms of front power, if the power is supplied by a pure electric mode, the power is directly connected to a corresponding battery pack or a battery simulation system, if the power is supplied by a hybrid power mode, the power is directly connected to a left power motor to perform engine load simulation if an engine is in a real object, and if the engine is not in a real object, the engine is simulated by a right power motor. In the aspect of rear power, according to different schemes, an electromechanical composite transmission system composed of motors is connected to corresponding left and right loading motors through a torque meter and mechanical inertia, besides the scheme of three motors with zero differential speed, other schemes can directly simulate the motor operation through left and right power motors under the condition of no tested motor, and simulate a double-input double-output electric transmission test through corresponding electromechanical composite transmission devices to perform semi-physical test verification on other control strategies such as a driving control strategy, a steering control strategy and a gear shifting control strategy.
The invention adopts the multifunctional electric transmission test system with the variable topological structure, can test and test electric transmission schemes of different schemes by simulating the engine, the generator and the driving motor, and simultaneously integrates double input and double output in the test system in a breakthrough way to effectively test the steering performance effect.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A test method of a multifunctional double-input double-output electric transmission test system with a variable topological structure is characterized by comprising the following steps:
step S1: judging whether a driving motor needs to be simulated, if so, simulating the driving motor by a left power motor and a right power motor, accessing the driving motors into corresponding electromechanical compound transmission devices, and if so, loading the motors left and right, simulating the actual load of the tracked vehicle through a torque meter and mechanical inertia to form a test bench for the driving characteristic of the dual-input dual-output electric transmission device, and if not, entering step S2;
step S2: judging whether a hybrid power mode is performed for energy supply, if not, entering a step S3, and if so, entering a step S4;
and step S3: judging whether a power supply system needs to be simulated or not, if so, configuring a corresponding battery or composite energy storage device simulation system and a power supply system for simulating electric transmission according to actual requirements, wherein an electromechanical composite transmission system is connected to a left loading motor and a right loading motor through a torquemeter and mechanical inertia to simulate the load of an actual tracked vehicle, so that an electric transmission system test bed based on the simulated power supply system is formed, and the electric transmission system is subjected to test;
and step S4: judging whether an engine needs to be simulated, if so, entering the step a, and if not, entering the step b;
a: judging whether a generator needs to be simulated or not, if so, taking a left power motor as a simulation motor of the engine, taking a right power motor as a simulation motor of the generator, connecting an electric transmission device to a left loading motor and a right loading motor through a torque meter and mechanical inertia, carrying out actual tracked vehicle load simulation, forming an electric transmission system test bench based on the characteristics of a simulated engine-generator set, carrying out test on an electric transmission system, and finishing;
b: judging whether a generator needs to be simulated or not, if so, taking a right power motor as a simulation motor of the generator, connecting an electric transmission device to a left loading motor and a right loading motor through a torque meter and mechanical inertia, simulating the load of the actual tracked vehicle, forming an electric transmission system test bench based on the characteristics of the simulation generator, carrying out test on an electric transmission system, and finishing; if the electric drive system is not needed, the engine-generator set is used as hybrid power energy to be output, the electric drive device is connected to the left loading motor and the right loading motor through the torque meter and the mechanical inertia to simulate the actual load of the tracked vehicle, an electric drive system test bench based on the characteristics of the engine-generator set is formed, test testing is conducted on the electric drive system, and the test is finished.
2. The method of claim 1, wherein the electric transmission, the shift control strategy, the electro-mechanical compound straight-driving control strategy, and the steering control strategy are tested experimentally.
3. The method of claim 1, wherein in step S3, if no simulation is required, the electric drive system is connected to the left and right loading motors via the torque meters and mechanical inertia to perform actual tracked vehicle load simulation to form an electric drive system test bed based on actual vehicle power supply to perform test testing on the electric drive system.
4. The method of claim 1, wherein in step b, if no simulated generator is required, the left power motor is used as a simulated motor for the engine, the electric transmission is connected to the left and right loading motors through the torque meter and the mechanical inertia to perform actual tracked vehicle load simulation, and an electric transmission test bed is constructed based on simulated engine characteristics to perform test testing on the electric transmission.
5. A multi-functional dual-input dual-output electric transmission test system with a variable topological structure is characterized by comprising:
the left and right power motors simulate driving motors and are connected into corresponding electromechanical compound transmission devices, and the left and right loading motors simulate actual tracked vehicle loads through a torque meter and mechanical inertia to form a test bed for the driving characteristics of the dual-input dual-output electric transmission device;
the torque meter and the mechanical inertia are connected to the left loading motor and the right loading motor to simulate the actual load of the tracked vehicle, so that an electric transmission system test bed based on a simulated power supply system is formed, and the electric transmission system is tested;
the left power motor is used as a simulation motor of an engine, the right power motor is used as a simulation motor of a generator, the electric transmission device is connected to the left loading motor and the right loading motor through a torque meter and mechanical inertia to simulate the load of an actual tracked vehicle, an electric transmission system test bench based on the characteristics of a simulated engine-generator set is formed, and an electric transmission system is tested;
the right power motor is used as a simulation motor of the generator, the electric transmission device is connected to the left loading motor and the right loading motor through a torque meter and mechanical inertia to simulate the actual load of the tracked vehicle, so that an electric transmission system test bed frame based on the characteristics of the simulation generator is formed, and the electric transmission system is tested;
the engine-generator set is used as hybrid power energy to be output, the electric transmission device is connected to the left loading motor and the right loading motor through the torque meter and the mechanical inertia to simulate the actual load of the tracked vehicle, an electric transmission system test bench based on the characteristics of the engine-generator set is formed, and the electric transmission system is tested.
6. The system of claim 5, further comprising: the electric transmission system is connected to the left loading motor and the right loading motor through the torque meter and the mechanical inertia to simulate the actual load of the tracked vehicle, so that an electric transmission system test bench based on actual vehicle power supply is formed, and the electric transmission system is subjected to test testing.
7. The system of claim 5, further comprising: the left power motor is used as a simulation motor of the engine, the electric transmission device is connected to the left loading motor and the right loading motor through the torque meter and the mechanical inertia to simulate the actual load of the tracked vehicle, so that an electric transmission system test bench based on the characteristics of the simulation engine is formed, and the electric transmission system is tested.
8. The system of claim 5, further comprising: the controllers are all in network communication through the CAN bus.
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| CN1539671A (en) * | 2003-04-22 | 2004-10-27 | 北京理工大学 | Device for testing electrical transmission in two routes of electric vehicle |
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| CN101644624B (en) * | 2009-03-24 | 2011-01-26 | 北京理工大学 | Steering test bench of electrical-closed tracked vehicle transmission device |
| CN102680248B (en) * | 2012-05-16 | 2015-06-10 | 奇瑞汽车股份有限公司 | Test bench and mounting method and testing method thereof |
| CN103063944A (en) * | 2012-12-04 | 2013-04-24 | 中国北方车辆研究所 | Vehicle electric transmission device test platform |
| CN109084988A (en) * | 2018-06-13 | 2018-12-25 | 阿尔特汽车技术股份有限公司 | A kind of PHEV platform system |
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